Flav Flip Cart Battery is compatible with your Flav cartridge. This battery accessory, at full charge, is capable of providing hours of medication, whether you’re on the go or at home. Flav cartridges are an excellent and simple natural alternative for treating medical ailments and helping users lead a happier, better quality of life. 

• Protects cartridge when folded 

• Spring loaded 

• 510 thread 

• Built-in USB charger